Downloading and Building

The Android build is routinely tested in-house on recent versions of
Ubuntu LTS (14.04), but most distributions should have the required
build tools available. We welcome reports of successes or failures on other
distributions.

Before you download and build the Android source, ensure your system meets
the following requirements:

A Linux or Mac OS system. It is also possible
to build Android in a virtual machine on unsupported systems such as Windows.
If you are running Linux in a virtual machine, you need at
least 16GB of RAM/swap and 100GB or more of disk space in order to
build the Android tree. See disk size requirements below.

A 64-bit environment is required for Gingerbread (2.3.x) and newer versions, including the master
branch. You can compile older versions on 32-bit systems.

At least 100GB of free disk space for a checkout, 150GB for a single
build, and 200GB or more for multiple builds. If you employ ccache, you will
need even more space.